They would further shape the flake beating it with a bone or stone until it took on a more finished shape. They would then use a pointed bone or stone to chip flakes of the edge of the arrowhead to created a serrated edge. So there were different tools, a bone or stone hammer, a bone or stone 'flaker' to make the edge. Fire was used as a tool and some used leather pads as gloves. Some indians even used very basic hand or bow powered drills to help fashion items. I'm sure there were many other tools and methods. Hope that helps. -tony
1 Calories in a slice of watermelon, a sixteenth of a whole, weighing approx 10.1 oz - 86. 2  1 oz of watermelon flesh has 9 watermelon calories in. 3  1 g of watermelon flesh has 0 calorie. 4  110 g of watermelon flesh has 30 watermelon calories.
1. Low Calorie. One ounce of watermelon seeds contains approximately 158 calories. Thatâs not much lower than an ounce of Layâs Potato Chips (160 calories), but letâs take a look at what constitutes an ounce. There are approximately 400 watermelon seeds in a single ounce, far too many to eat in one sitting. By contrast, there are only 15 potato chips in an ounce, far less than most people would normally munch in one sitting.